Abstract
We report ab initio scattering calculations results of electron-methanethiol collisions using R-matrix approach within the static-exchange and static-exchange-polarization approximations. The calculated elastic integral cross sections are in agreement with the experimental data. Two shape resonances of 2A′ symmetry located at 4.06 and 8.32 eV are detected within static-exchange-polarization model. For this dipole molecule, Born-closure procedure was used to account for the higher partial waves (l>4) for the convergence of the cross section. The effective collision frequencies over a wide electron temperature range (200–30000 K) are calculated using the data of the momentum-transfer cross section.
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